The symbol "₫" represents the currency of Vietnam, known as the Vietnamese dong. It is used for all transactions within the country and is subdivided into smaller units called "hào," although the hào is no longer in common use. The dong has undergone several changes in value and design since its introduction in 3rd century AD. The Vietnamese dong is issued by the State Bank of Vietnam and is essential for everyday purchases, from food to services. As of recent years, the dong has experienced fluctuations in exchange rates against major currencies like the US dollar and the Euro, reflecting the country's economic conditions.